Electromechanical batteries: flywheels for temporary energy storage

Rafael Pena Alzola, R. Sebastian

Research output: Contribution to journalArticle

Abstract

In the Electromechanical batteries (EMB) a flywheel stores mechanical energy that interchanges in form of electrical energy by means of an electrical machine with a bidirectional power converter. EMB are suitable whenever numerous charge and recharge cycles (hundred of thousands) are needed with medium to high power (kW to MW) during short periods (seconds). The materials of the flywheel, the type of the electrical machine, the type of the bearings and the atmosphere inside the housing determine the energy efficiency of the EMB. EMB are commercially available with more than a dozen of manufacturers. Amongst the applications of BEM are: uninterruptible power supplies, hybrid power systems, power grids feeding trains, hybrid vehicles and space satellites. Key words: Electromechanical Batteries, Flywheel, Energy storage.
Translated title of the contributionElectromechanical batteries: flywheels for temporary energy storage
LanguageSpanish
Pages440-444
Number of pages5
JournalDyna Ingeniería e Industria
Volume83
Issue number7
Publication statusPublished - Oct 2008

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Flywheels
Energy storage
Bearings (structural)
Uninterruptible power systems
Interchanges
Hybrid vehicles
Power converters
Energy efficiency
Satellites

Keywords

  • electromechanical batteries
  • flywheel
  • energy storage

Cite this

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Baterías electromecánicas: volantes de inercia para el almacenamiento temporal de energía. / Pena Alzola, Rafael; Sebastian, R.

Vol. 83, No. 7, 10.2008, p. 440-444.

Research output: Contribution to journalArticle

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AU - Pena Alzola, Rafael

AU - Sebastian, R.

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AB - In the Electromechanical batteries (EMB) a flywheel stores mechanical energy that interchanges in form of electrical energy by means of an electrical machine with a bidirectional power converter. EMB are suitable whenever numerous charge and recharge cycles (hundred of thousands) are needed with medium to high power (kW to MW) during short periods (seconds). The materials of the flywheel, the type of the electrical machine, the type of the bearings and the atmosphere inside the housing determine the energy efficiency of the EMB. EMB are commercially available with more than a dozen of manufacturers. Amongst the applications of BEM are: uninterruptible power supplies, hybrid power systems, power grids feeding trains, hybrid vehicles and space satellites. Key words: Electromechanical Batteries, Flywheel, Energy storage.

KW - electromechanical batteries

KW - flywheel

KW - energy storage

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